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 <h1>会话</h1>


 <p class="para">
  PHP 中的会话支持包含在后续的访问中保留某些数据的方法。这使得能够构建更多的自定义应用程序以及增加网站的新引力。在
  <a href="book.session.html" class="link">Session 参考</a>节获取所有信息。
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